伊朗计划兴建300个新港口

2010年12月30日获悉，为扩大伊朗港口的装卸量，伊朗计划兴建大批新港口。负责伊朗港口与海事事物的负责人AtaollahSadr表示，自去年以来，伊朗已经建造了40多个多功能港口。AtaoHahSadr指出，伊朗国内港口集装箱目前的装卸量为每年440×10^4t，预计到2015年将达到700×10^4t。伊朗港口每年的吞吐量为1．5×10^9t，今后5a内将大幅增加。报道称，今年前8个月，非石油类货物的装卸量为9100×10^4t，与去年同期相比增长了15％。伊朗此前曾宣布，非石油类货物出口量自今年年初增加了26％。

Research on Optimization of Formula Design for Modified Asphalt Composition

In order to improve pavement performance of modified asphalt in the project application, to reduce the early damage of the road such as rutting, cracking, pit, also reduce the periodic of maintenance and the cost of the project, we completely do research on the formula optimization design of modified asphalt prepatation. There are three parts： the compatibility of base asphalt and modifier, thermal storage stability and properties of modified asphalt composition. We choose three kinds of AH -70 heavy wheel loads junction petroleum pitch, amixing three kinds of SBS modifier （YH761、YH791 - H, Road - Modifier #2 ） and two kinds of stabilizer （ wdj, WT）, to compare the main indexes such as PI, softening point, ductility, etc. So we find that the most suitable modifier and stabilizer can make the modified asphalt performance best by their prefered blending amount to every base asphalt. This can solve the problems which sustainance stability of asphalt surface layer under high or low temperature and partial damage occurrence, then extended roadway service cycle life.